james



B. JAMES.

I JACK SPOOL. Elm-103,193. Patented May 17, 1870.

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B, JAMES, orwo-ncnsrnn, MASSACHUSETTS.

Letters Patent No 103,193, dated Ma 17, 1870.

IMPRQVEMBNT IN JACK-3300118.

the Schedule "was to inflame Letters Patent as making part of the same To all whom it may concern:

Be it known that I, B. JAMES, of Worcester, in the county of Worcester and State of Massachusetts, have invented a new and improved Spool; and I do hereby'declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to'make anduse the same, reference being bad to the accompanying drawings forming part of this specification;

gudgeon, which enters and is held in the cap alone, sov

Ehzst the head can have, no direct contact-with the o y.

This mode of uniting the parts is defective in many respects.' The metallic cap being upon the exterior of the spool, is affected by the heat by which the spool is usually surrounded .when in use, audi will expand when heated and contract when-cold, and will thusybe caused to work loose in process of time, and the wood body shrinks, also, to such an 'extentthatlthe cap and head frequently become separated from it, wasting the yarn and roping on the spoohand causing it to snarl and become worthless, and the spool itself, after it has been tightened up a few times, becomes worn,- and is soon cast aside as worthless.

i The above objections especially apply to one style of spool in which the metulliccap is screwed "upon the exterior of the wood body; But they, also attend the use of spools in which-the body and. head are united by an intermediate metallic cap having a central screwplug, which is screwed into the end of the body; and, moreover as' this 'plug is necessarily large in diameter, it weakensthe 'spoolbo'dy, and soon becomes loose by the shrinking of the wood, and the'necessary strain in handling .soon tears the wood thread out, thus. causingthe separation of the cap and head from the body,

Toremedy these and other diificultiesl do away with anjinterposedcap, and unite the head directly with the body by a. screw passing through the bead.

and into the body, employing, in lieu of the metallic cap, an angle hoop or flanged ferrule, which, although not fastened either to .the head or body, fits upon the 'end of the spool, and serves to brace't-he head and strengthen the jointbetween it and the body.

I also prefer tomakethe screw-gudgcon' or journal which unitesthehead and body with the screw shank larger in diameter than the journal or gudgeon, in order to obtain as large a screw as'needed toho'ld the parts securely without being compelled to increase the size of the gudgeonorjournal portion.

A flange on the screw, at the point where it is united with the gndgeon or journal, forms the shoulder which bears against the head and holds it to the body. v

In order to avoid all danger arising from the shriuk- ,,'ing of the soft wood of which the body of the spool is formed, I can insert in the body, as has heretofore been done, a nut of hard wood, into which the screw will enter.

The angle-hoop or flanged ferrule is entire-l y .open at the: end, so that the head and body of the spoolare in direct contact, and there is no interposed layer of metal between the two to loosen them by its contractiouor expansion cousequent'upon the varying temperatures of the room in which the spool isused.

The screw, under the arrangement devised by me,

can, without weakening the body of the spool, enter it to any desired extent, taking a firm and secure hold, so as to prevent all liability of the loosening and separation of the head fromthe-spool.

To enable those skilled in the art to understand and use my invention, '1 willnow proceed to describe the manner in which the same is ear -led into efl'ect by reference to the accompanying drawings, in which- Figure 1 is a view of one of the head or end-plates of the spool, and v Figure 2 is a, side elevatiouof the spool, partlyin section. v

A'represents the body or central and cylindrical portion of the spool, which may be of any of the usual lengths and sizes required for jack-spools.

B B are the two heads or end-plates, directly applied to the body A without the interposition of the usual metallic caps, and directly secured to the same by means of theceutral screw-shafts O, which pass throughthe heads into the body of the spool to any desired distance, so as to hold the parts securely faces of the heads, and are either sunk below or placed 1 above or flush with such faces, as preferred.

I construct the screw portion of the shaft 0 oflonger diameter than the projecting journal or 'gudwhich results are apparent without further explanation.

What I claim as my invention, and desire to secure by Letters Patent, is-

The jack-spool herein described, consisting of the body A, heads B, disks or washers F, and flanged ferrules let into the heads and body, and the whole secured together by the screws 0 having the gudgeon s, and conical flanges, andall constructed as set forth.

The above specification of my invention signed by me this 12th day of September, 1866 B. JAMES.

Witnesses:

WM. F. MQNAMAEA, ALBERT W. BROWN. 

